package com.cy.shop.config;

import com.cy.shop.interceptor.LoginInterceptor;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.ArrayList;
import java.util.List;

/*处理器拦截器的注册*/
@Configuration //加载当前的拦截器并进行注册
public class LoginInterceptorConfigurer implements WebMvcConfigurer {

    //用于配置拦截器
    @Override
    public void addInterceptors(InterceptorRegistry registry) {

        /*创建自定义的拦截器对象*/
        HandlerInterceptor interceptor =new LoginInterceptor();

        //配置白名单，白名单存放在List<> 集合中
        List<String> patterns =new ArrayList<>();
        patterns.add("/bootstrap3/**");
        patterns.add("/css/**");
        patterns.add("/images/**");
        patterns.add("/js/**");
        patterns.add("/web/register.html");
        patterns.add("/web/login.html");
        patterns.add("/web/index.html");
        patterns.add("/web/product.html");
        patterns.add("/users/reg");
        patterns.add("/users/login");
        patterns.add("/districts/**");
        patterns.add("/products/**");


        //完成拦截器的注册
        registry.addInterceptor(interceptor)
                .addPathPatterns("/**")
                .excludePathPatterns(patterns); //传递上面配置的List集合（白名单）
    }
}
